BSC 2011L Final Study Guide
BSC 2011L Final Study Guide BSC 2011L
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This 7 page Study Guide was uploaded by Franccesca Pickmans on Saturday April 23, 2016. The Study Guide belongs to BSC 2011L at University of South Florida taught by in Spring 2016. Since its upload, it has received 8 views. For similar materials see Biological Science Lab II in Biology at University of South Florida.
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Date Created: 04/23/16
BIO II LAB FINAL Supergroup: OPISTHOKONTA Kingdom: ANIMALIA Clade: PARAZOA Phylum: PORIFERA SPONGES! EUMETAZOA RADIATA Phylum: CNIDARIA JELLYFISH, BOX JELLIES, CORAL, SEA ANEMONES! *Have 2 germ layers (ecto and endo derm) with a gelatinous substance know as Choanocyte: A specialized cell of sponges mesoglea in between that functions to trap and eat small particles. *Posses single ﬂagella *Gastrovascular cavity capable of Thought to be a link to its ancestor the extracellular digestion and a nerve net chanoﬂagellate composed of interconnected neurons (but lack brain organ) Spongin: A tough protein that lends skeletal support to a sponge. Class: HYDROZOA Spicules: Needle-like structures that are PORTUGUESE MAN-OF-WAR & usually made of silica and form lattice-like SOME CORAL! skeletons in sponges, possibly helping to reduce predation. *Sponges are ASYMMETRICAL and LACK *Most of life in polyp stage; medusa stage is TRUE TISSUES short lived and used only for sexual reproduction BIO II LAB FINAL EUMETAZOA BILATERAL PROTOSTOMIA LOPHOTROCHOZOA *Clade includes animals possessing either a lophophore or trochophore larval stage *Lophophores are special feeding apparatus consisting of ciliated tentacle surrounding a mouth (ALSO for repiration) *”Portuguese man-of-war” *All have true body cavity and complete digestive system Class: ANTHOZOA MOST CORAL & SEA ANEMONES! Phylum: PLATYHELMINTHES FLATWORMS! *Bilateral symmetry w/ no true body cavity *Have cephalization *Incomplete gastrovascular cavity (only has *Polyp stage is dominant opening) *Most parasitic, some free living Class: SCYPHOZOA *Hermaphroditic JELLYFISH! *move away from light (negative taxa) Class: TURBELLARIA *Mostly marine *Free-living ﬂatworms *Predators or scavengers *Medusa stage is dominant BIO II LAB FINAL Class: TREMATODA Phylum: ROTIFERA *Internal parasites of vertebrates *have digestive organs *complex life cycle with several intermediate hosts *Wheel-like motion of the corona *Rotifers have a structure in the center of Class: CESTODA the animal that looks like a beating heart TAPEWORMS! called a mastax, used for feeding *Complex life cycle w/ one intermediate host *methlycellulose is used to slow animals *no digestive system; absorbs instead down (like the rotifer) Phylum: BRACHIOPODS *sessil organisms *commonly mistaken with species from the phylum mollusca Phylum: ANNELIDIA SEGMENTED WORMS! *Segmentation involves the separation of the body wall by septa, this process is called metamerism *Segmentation facilitates locomotion *closed circulatory system *complete digestive system *respiration through skin or gills *simple nervous system: simple brain and ventral nerve cord BIO II LAB FINAL Class: ERRANTIA Class: POLYPLACOPHORA FREE LIVING PREDATOR CHITONS Class: GASTROPODA SNAILS AND SLUGS Class: SEDENTARIA SENDENTARIANS OR SLOW MOVING Class: BIVALVIA CLAMS, MUSCLES, OYSTERS Class: CEPHALOPODA OCTUPUS AND SQUIDS Phylum: MOLLUSCA SNAILS, SLUGS, OYSTERS, CLAMS, OCTOPUS, AND SQUID *Have muscular foot for movement *visceral mass which contains most of internal organs *mantle that drapes the visceral mass *secretes a protective shell BIO II LAB FINAL EUMETAZOA Subphylum: CRUSTACEA BILATERAL CRABS, LOBSTERS, SHRIMP PROTOSTOMIA ECDYSOZOA Phylum: ARTHOPODA Subphylum: TRILOBITA Subphylum: CHELICERATA HORSESHOE CRABS Subphylum: HEXAPODA INSECTS *3 body segments *6 legs Subphylum: MYRIAPODA CENTIPEDES AND MILIPEDES *Have single pair of antennae *A hardened head capsule *Long segmented body *Uniramous, single branched appendages unlike crustaceans Class: ARACHNIDA Phylum: NEMATODA SPIDERS, SCORPIANS, MITES, AND TICKS *Chelicerae, modiﬁed fangs to pierce prey *pedipalps to manipulate food and sense the environment *8 legs *2 body regions !!! insects have 3 body regions and 6 legs !!! BIO II LAB FINAL EUMETAZOA Class: OPHIUROIDEA BILATERAL BRITTLE STARS AND BASKET DEUTEROSTOMIA STARS Phylum: ECHINODERMATA SEA STARS, SEA CUCUMBERS, SEA URCHINS *Pentaradial symmetry (5 equal body parts) *The larvae are bilaterally symmetrical, but through metamorphosis to the adult form it will superﬁcially look radially symmetrical Class: ECHINOIDEA SEA URCHINS AND SAND DOLLARS Class: ASTEROIDEA SEA STARS *possess ﬁve or more arms radiating from a central disk *hundreds of pairs of suckered tube feet on the underside of each arm *prey on bivalves Class: HOLOTHUROIDEA SEA CUCUMBERS BIO II LAB FINAL Phylum: CHORDATA TUNICATES, LANCELETS, VERTEBRATES Subphylum: UROCHORDATA Subphylum: CEPHALOCHORDATA Subphylum: VERTEBRATA !!! REVIEW FROM LAB MANUAL !!! easy
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